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Honda / Mid-Range

Honda BF50

The BF40 and BF50 are an outstanding combination of Honda’s legendary four-stroke engineering and our latest outboard innovations.

All Honda outboards
Honda BF50

Mid-Range

BF50

Power
50 hp
Configuration
4-Stroke SOHC, 3 Cylinder, 2 Valves/Cyl.
Displacement
808 cc
Weight
214 lb
AuthorizedHondadealer
View on Honda site

About this engine

The BF40 and BF50 are an outstanding combination of Honda’s legendary four-stroke engineering and our latest outboard innovations. The result? The lightest, most compact engines in their class. And because they are from Honda, they’re loaded with unparalleled features and technology. Like BLAST (Boosted Low Speed Torque) for vastly improved hole shots. Programmed Electronic Fuel Injection, for easy starts, instant throttle response, and overall better fuel economy. Lean Burn Control stretches your gas even further by allowing a leaner air-to-fuel mixture. Put it all together, and you’ll l find that the BF40 and BF50 aren’t just at the head of the class. They’re in a class by themselves, redefining mid-range four-stroke performance.

Key features

  • Instant Acceleration: Honda’s exclusive BLAST system improves acceleration at low speeds.
  • High Performance Gearcase: Designed to get you going faster, the BF40 and 50's gearcase reduces drag, greatly reduces hull porpoise and minimizes spray, increasing acceleration and top speed.
  • Mikuni Intake System: The lightweight Mikuni long tube intake track system helps build low end torque, improving performance.
  • Lightweight and compact: Because of Honda’s elegant design, the BF40 and 50 are among the lightest, most compact engines in their class.
  • Best In Class Fuel Efficiency: Lean Burn Control increases fuel efficiency by allowing combustion to operate on a leaner air/fuel mixture.
  • PGM-FI: Multi-port Programmed Fuel Injection adds both easy starts and improved fuel efficiency - without sacrificing performance.
  • Honda Corrosion Protection: Your Honda can continue to look and perform like new, thanks to our corrosion protection system.
  • Fresh Water Flushport: Fresh water flushport flushes debris and saltwater out of the engine.
  • Honda Quality: Our outboards share many technologies and components used in Honda vehicles, with all the benefits of years of proven Honda engineering, precision manufacturing and reliability.
  • Unmatched peace of mind: Honda's True 5 Warranty is the best in the business.
  • Engine Alert System: The Engine Alert System uses visual, audio and RPM reduction circuits to alert the operator of over-heating, low oil PSI and over-revving.
  • On-board connectivity: NMEA 2000 protocols allow engine data to be interfaced with on-board systems and systems displays, such as SONAR or GPS.
  • High Output Charging for more usable power: The high output charging system features a 22 amp "On Demand" belt-driven alternator with 17 charging amps.
  • Easy Maintenance: Easy access side-mounted oil filter and oil fillers simplify maintenance, while "screw-type" valve adjusters reduce maintenance costs.
  • 3 Position Tiller Handle: The 3 Position Tiller Handle adjusts to your comfort for easiest hull maneuverability.
  • Easy Access Controls: The center mounted, ergonomically designed tiller handle is longer for improved handling.
  • Variable Trolling Speeds: An optional switch allows for variable trolling speeds, ideal for fishermen.
  • Power Trim/Tilt: Allows you to trim the unit for maximum performance and handling.Trim Range: - 4° to +16°Tilt Range: 63°

Full specifications

Type
4-Stroke SOHC, 3 Cylinder, 2 Valves/Cyl.
Displacement
808 cc (49.3 cubic inches)
Bore & Stroke
70 mm x 70 mm (2.8 x 2.8 inches)
Full Throttle RPM Range
5,500-6,000 RPM
Rated Power
50 HP @ 6,000 RPM
Cooling System
Water Cooled
Fuel Delivery
Programmed Fuel Injection
Ignition System
MicroComputer Programmed
Starting System
Electric
Exhaust
Through Hub
Lubrication
Wet Sump
Trim Range
-4° to +16°
Tilt Range
63°
Gear Ratio
2.08:1
Gear Shift
F-N-R
Alternator with voltage regulator
22-Amp (275 watt)
Battery Charging Power
17 Amps
Propeller
Optional
Power Tilt
NA
Power Trim & Tilt
Available
Gas Assisted Tilt
Available
Oil Pressure Alert
Standard
Temperature Alert
Standard
Rev-Limiter
Standard
Speedometer Pickup
Standard
Recreational
5 years
Commercial/Rental
2 years
Optional Extended
Up to 36 months Learn More
Overall Width
372 mm/14.7 inches
L Type
508 mm/20 inches
X Type
635 mm/25 inches
L-Type
97 kg/214 lbs.
X-Type
101 kg/223 lbs.